Highly CO2 selective membranes by potassium cations as carriers for facilitated transport with Ag2O particles and free ions in ionic liquid
- Title
- Highly CO2 selective membranes by potassium cations as carriers for facilitated transport with Ag2O particles and free ions in ionic liquid
- Author
- 강용수
- Keywords
- CO2; Separation; Facilitated transport; KF; Ag2O
- Issue Date
- 2017-07
- Publisher
- ELSEVIER SCIENCE SA
- Citation
- CHEMICAL ENGINEERING JOURNAL, v. 320, page. 29-33
- Abstract
- The highly selective composite membranes consisting of ionic liquid 1-butyl-3-methyl imidazolium tetrafluoroborate (BMIIVI+BE4-)/Ag2O/KF were prepared for CO2 separation. When Ag2O and KF were incorporated into BMIM+CB4-, the ideal selectivities of CO2/N-2 and CO2/CH4 reached 105 and 52, respectively, with a CO2 gas permeance of 31 GPU. These enhanced separation performance were attributable to synergistic effect of (1) K+ cations in KF as CO2 carriers for facilitated transport and (2) the oxide layer of the well-dispersed Ag2O and free ions in ionic liquid for improvement in CO2 solubility. The coordinative interactions in the BMIM+BE4-/AB(2)O/KF membrane were characterized by TGA, XPS, and FT-Raman spectroscopy. (C) 2017 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S1385894717303650?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/114837
- ISSN
- 1385-8947; 1873-3212
- DOI
- 10.1016/j.cej.2017.03.032
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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